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authorLinus Torvalds <torvalds@linux-foundation.org>2010-02-26 16:54:27 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2010-02-26 16:54:27 -0800
commit64d497f55379b1e320a08ec2426468d96f5642ec (patch)
tree22b9ab3c5e69c5cc2728cbc2ca7fc7623beef8f1 /arch/sh/include/asm/pgalloc.h
parent37d4008484977f60d5d37499a2670c79b214dd46 (diff)
parentb5f5fe80fa98a60daa0fa94512d1599b1e26674c (diff)
Merge git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh-2.6: (187 commits) sh: remove dead LED code for migo-r and ms7724se sh: ecovec build fix for CONFIG_I2C=n sh: ecovec r-standby support sh: ms7724se r-standby support sh: SH-Mobile R-standby register save/restore clocksource: Fix up a registration/IRQ race in the sh drivers. sh: ms7724: modify scan_timing for KEYSC sh: ms7724: Add sh_sir support sh: mach-ecovec24: Add sh_sir support sh: wire up SET/GET_UNALIGN_CTL. sh: allow alignment fault mode to be configured at kernel boot. sh: sh7724: Update FSI/SPU2 clock sh: always enable sh7724 vpu_clk and set to 166MHz on Ecovec sh: add sh7724 kick callback to clk_div4_table sh: introduce struct clk_div4_table sh: clock-cpg div4 set_rate() shift fix sh: Turn on speculative return for SH7785 and SH7786 sh: Merge legacy and dynamic PMB modes. sh: Use uncached I/O helpers in PMB setup. sh: Provide uncached I/O helpers. ...
Diffstat (limited to 'arch/sh/include/asm/pgalloc.h')
-rw-r--r--arch/sh/include/asm/pgalloc.h32
1 files changed, 10 insertions, 22 deletions
diff --git a/arch/sh/include/asm/pgalloc.h b/arch/sh/include/asm/pgalloc.h
index 63ca37bd9a95..8c00785c60d5 100644
--- a/arch/sh/include/asm/pgalloc.h
+++ b/arch/sh/include/asm/pgalloc.h
@@ -4,8 +4,16 @@
#include <linux/quicklist.h>
#include <asm/page.h>
-#define QUICK_PGD 0 /* We preserve special mappings over free */
-#define QUICK_PT 1 /* Other page table pages that are zero on free */
+#define QUICK_PT 0 /* Other page table pages that are zero on free */
+
+extern pgd_t *pgd_alloc(struct mm_struct *);
+extern void pgd_free(struct mm_struct *mm, pgd_t *pgd);
+
+#if PAGETABLE_LEVELS > 2
+extern void pud_populate(struct mm_struct *mm, pud_t *pudp, pmd_t *pmd);
+extern pmd_t *pmd_alloc_one(struct mm_struct *mm, unsigned long address);
+extern void pmd_free(struct mm_struct *mm, pmd_t *pmd);
+#endif
static inline void pmd_populate_kernel(struct mm_struct *mm, pmd_t *pmd,
pte_t *pte)
@@ -20,28 +28,9 @@ static inline void pmd_populate(struct mm_struct *mm, pmd_t *pmd,
}
#define pmd_pgtable(pmd) pmd_page(pmd)
-static inline void pgd_ctor(void *x)
-{
- pgd_t *pgd = x;
-
- memcpy(pgd + USER_PTRS_PER_PGD,
- swapper_pg_dir + USER_PTRS_PER_PGD,
- (PTRS_PER_PGD - USER_PTRS_PER_PGD) * sizeof(pgd_t));
-}
-
/*
* Allocate and free page tables.
*/
-static inline pgd_t *pgd_alloc(struct mm_struct *mm)
-{
- return quicklist_alloc(QUICK_PGD, GFP_KERNEL | __GFP_REPEAT, pgd_ctor);
-}
-
-static inline void pgd_free(struct mm_struct *mm, pgd_t *pgd)
-{
- quicklist_free(QUICK_PGD, NULL, pgd);
-}
-
static inline pte_t *pte_alloc_one_kernel(struct mm_struct *mm,
unsigned long address)
{
@@ -81,7 +70,6 @@ do { \
static inline void check_pgt_cache(void)
{
- quicklist_trim(QUICK_PGD, NULL, 25, 16);
quicklist_trim(QUICK_PT, NULL, 25, 16);
}